You can use a CSV action to delete your inventory in bulk or to reset your inventory.
Firstly, select the Export button and export your products.
You will receive an email shortly with a link to your export. Open the file in either Excel or Google Sheets.
Prepare a file with a list of the SKUs you want to delete, and another column with "Action" as the column header, and "Delete" as the action.
Save the file as a .csv file, and upload it to PartsPal's file manager
Your products should begin deleting soon.
Note, that if you re-upload the same SKUs, it will retain the information that it had prior to deletion.